Demo

User Interface Developer

Bottomline
Portsmouth, NH Full Time
POSTED ON 10/30/2025 CLOSED ON 12/17/2025

What are the responsibilities and job description for the User Interface Developer position at Bottomline?

Why Choose Bottomline?


Are you ready to transform the way businesses pay and get paid? Bottomline is a global leader in business payments and cash management, with over 35 years of experience and moving more than $16 trillion in payments annually. We're looking for passionate individuals to join our team and help drive impactful results for our customers. If you're dedicated to delighting customers and promoting growth and innovation - we want you on our team!


The Role

Bottomline is looking for a Senior User Interface Developer to grow with us either remotely or in a Hybrid work environment out of our Theale, UK office!


We are looking for a Senior UI Developer to innovate, win and grow with us as part of our highly skilled and dedicated UI Development group. In this role, you will have the opportunity to collaborate with multiple innovative teams, coordinate complex product integrations, and contribute to many of Bottomline’s key platforms.


How you’ll contribute:

  • Collaborate with product owners and UX specialists to refine component specifications and translate those designs into accessible UI interfaces using React and related technologies.
  • Create prototypes and proof of concepts to drive the future state of one of Bottomline’s platforms.
  • May “float” between teams, offering senior-level UI support where needed.
  • Maintain and enhance our development best practices.
  • Actively participate in code reviews to enforce code quality and share knowledge.
  • Mentor junior developers and provide technical guidance.
  • Help maintain and contribute to Bottomline’s UI Design Library.


What will make you successful:

  • Strong JavaScript/TypeScript knowledge, with an emphasis on clean, modern syntax and features.
  • Proficient with React and the general React ecosystem.
  • Skilled in clean, valid, maintainable, and semantically correct HTML and CSS.
  • Experience performing Unit Testing
  • Strong understanding of Responsive Design principles.
  • Experience writing unit and integration tests.
  • Working experience with WCAG 2.0-WCAG 2.2 Level A and AA success criteria.
  • Experience with Agile methodology a plus.
  • Strong communication skills are a must.


What We Offer:

  • Competitive salary and benefits package.
  • Opportunities for professional growth and advancement.
  • A collaborative and innovative work environment.
  • Flexible working arrangements.



#LifeAtBottomline


We welcome talent at all career stages and are dedicated to understanding and supporting additional needs. We're proud to be an equal opportunity employer, committed to creating an inclusive and open environment for everyone.

Salary : $16

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